Effects of Pr3+doping concentration on optical properties of LaF3 crystal

被引:8
作者
Fang, Qiannan [1 ]
Huang, Conghui [1 ,2 ]
Zhang, Yuxia [1 ,3 ]
Zhao, Chengchun [1 ]
Cai, Shuang [1 ]
Li, Shanming [1 ]
Hang, Yin [1 ]
机构
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Res Ctr Laser Crystal, Shanghai 201800, Peoples R China
[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
[3] Qingdao Univ, Coll Phys, 308 Ning Xia Rd, Qingdao 266071, Peoples R China
基金
中国国家自然科学基金;
关键词
LaF3; Pr; Doping concentration; Visible laser; PUMPED LASER OPERATION; SPECTROSCOPY; EMISSION; ORANGE; PR3+;
D O I
10.1016/j.optlastec.2022.109021
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The crystal compositions, fluorescence lifetimes, polarized absorption and emission spectra, and laser performance were measured with different doping concentrations of Pr:LaF3 crystals. Moreover, the effects of Pr3+ doping concentration on LaF3 crystal optical properties were expounded for the first time. The study found that high doping concentration is easy to cause cross-relaxation, which in turn leads to a decrease in the lifetime of the laser upper energy level. And then affects the output efficiency of the visible laser. The laser experiment results confirm that the maximum output power of 176 mW was obtained with Pr:LaF3 crystal of 0.5 at.% doping concentration, which is higher than output power (71.3 mW) of 1 at.% doping concentration crystal. As we all know, this is the first report about continuous-wave (cw) laser operation with Pr:LaF3 crystal pumped by an blue laser diode.
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页数:5
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